Review on ZIOCOM Bluetooth Car Adapter: Wireless Music Receiver with Dual Link, Built-in Mic, Noise Cancelling - Compatible with Car, Home Stereo, Headphones/Speakers by Mike West

It's SO easy to use. and does exactly what it promises. I have an older (2000's) Yamaha bookshelf system that I paid close to $500 for at the time. The sound on it is amazing, but unfortunately it has a radio and CD player, a USB port and an AUX input. but that was done before bluetooth. I got tired of inserting CDs or plugging in unsightly cords and had to tie my phone to the shelf the unit was sitting on while listening to music. I didn't think something so cheap and simple could add Bluetooth to my old legacy system. But with a click of the included two-way aux adapter, plugging into the system's aux port and quickly pairing with my Android smartphone, it's playing music! The device is slim and the size of a small flash drive. less than a pack of matches. It's well designed so that it's unobtrusive when plugged in. The sound is fantastic, I don't hear any distortion. maybe an accidental click, but it's most likely a port on my system, not an adapter. The volume is perfect, it can be controlled from the phone. Battery life is pretty good, giving you several hours of Bluetooth listening on a full charge. The flashing blue light stays on when Bluetooth is on, which can be distracting if it's in visible space. That would be my only negative point. One of the most amazing things for me is the Bluetooth range! I went to different rooms more than 20 feet from the system and there was no sound. Even some of my expensive amps with built in Bluetooth receivers, like the Monoprice tube amp, have built in Bluetooth that works up to 10 feet and won't go through walls/doors. Surprised the range is much better for fifteen bucks! It also comes with a short reversible plug, a USB charging cable, and a longer auxiliary cable. The bottom line is, if you have an expensive or favorite pre-2000s Bluetooth technology system, having an extra jack will update that and make things very convenient for you. Many non-Bluetooth vehicles have additional ports. So it would also be very handy for cars instead of pulling a chord from the aux jack to the phone. This money was well spent as they pair easily, start and run in seconds and sound/work great!